| Isaias vs Kazuya | 8–7 | 53.33% |
| Isaias vs Lars | 3–4 | 42.86% |
| Isaias vs Hwoarang | 3–3 | 50.00% |
| Isaias vs Jin | 1–4 | 20.00% |
| Isaias vs Panda | 1–4 | 20.00% |
| Isaias vs Eddy | 1–4 | 20.00% |
| Isaias vs Law | 2–2 | 50.00% |
| Isaias vs King | 2–2 | 50.00% |
| Isaias vs Bryan | 0–4 | 0.00% |
| Isaias vs Zafina | 2–2 | 50.00% |
| Isaias vs Steve | 1–2 | 33.33% |
| Isaias vs Yoshimitsu | 1–2 | 33.33% |
| Isaias vs Alisa | 2–1 | 66.67% |
| Isaias vs Jun | 3–0 | 100.00% |
| Isaias vs Devil Jin | 2–0 | 100.00% |
| Isaias vs Claudio | 2–0 | 100.00% |
| Isaias vs Lee | 0–2 | 0.00% |
| Isaias vs Kuma | 0–2 | 0.00% |
| Isaias vs Raven | 2–0 | 100.00% |
| Isaias vs Reina | 1–0 | 100.00% |
| Isaias vs Azucena | 1–0 | 100.00% |
| Isaias vs Victor | 1–0 | 100.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.